From 86b08d867d7de001ab224180ed7865fab93fd56e Mon Sep 17 00:00:00 2001 From: KOVACS Krisztian Date: Wed, 1 Oct 2008 07:44:42 -0700 Subject: ipv4: Make Netfilter's ip_route_me_harder() non-local address compatible Netfilter's ip_route_me_harder() tries to re-route packets either generated or re-routed by Netfilter. This patch changes ip_route_me_harder() to handle packets from non-locally-bound sockets with IP_TRANSPARENT set as local and to set the appropriate flowi flags when re-doing the routing lookup. Signed-off-by: KOVACS Krisztian Signed-off-by: David S. Miller --- net/ipv4/netfilter.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'net/ipv4/netfilter.c') diff --git a/net/ipv4/netfilter.c b/net/ipv4/netfilter.c index f8edacdf991..01671ad51ed 100644 --- a/net/ipv4/netfilter.c +++ b/net/ipv4/netfilter.c @@ -20,6 +20,8 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type) unsigned int type; type = inet_addr_type(&init_net, iph->saddr); + if (skb->sk && inet_sk(skb->sk)->transparent) + type = RTN_LOCAL; if (addr_type == RTN_UNSPEC) addr_type = type; @@ -33,6 +35,7 @@ int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type) fl.nl_u.ip4_u.tos = RT_TOS(iph->tos); fl.oif = skb->sk ? skb->sk->sk_bound_dev_if : 0; fl.mark = skb->mark; + fl.flags = skb->sk ? inet_sk_flowi_flags(skb->sk) : 0; if (ip_route_output_key(&init_net, &rt, &fl) != 0) return -1; -- cgit v1.2.3